| 摘要 |
PURPOSE:To provide a polyurethane resin composition having high heat resistance and good non-extractability, by incorporating, as a stabilizer, a poly (calkylated alkenyl phenol) composed of a specific monomer unit. CONSTITUTION:The objective composition can be obtained by incorporating polyurethane with, as a stabilizer, preferably 0.003-10 wt% of at least one sort of a poly (alkylated alkenyl phenol) composed virtually of a monomer unit of formula I (R1 is 1-18C alkyl; R2 is H or 1-18C alkyl). The stabilizer is a mono-or dialkylated product from the alkenylphenol polymer of formula II; and can be prepared, for example, by alkylation of a polyalkenylphenol with an alkylating agent such as ethylene, propylene, isobutylene, nonene, etc. EFFECT:The stabilizer has a continued stabilization effect, having good compatibility with polyurethane, along with high migration resistance. |
